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Speed Maths Test Worksheet

Speed calculation lesson 15: Mixed speed challenge · Set 567 · 40 questions
TalentJR

The fast method (Spot the trick): A 7, 8 or 9 in the ones place → round and fix. × 4, 8, 5, 50 or 15 → doubling or halving tricks. ÷ 5, 25 or 50 → double first. A percentage → start from 10%. Checking or estimating → nines or rounding.

NameDateTime takenScore ___ / 40
  1. 1.51² =
  2. 2.91 × 4 =
  3. 3.135 + 98 =
  4. 4.5 + 1 + 4 + 4 + 5 =
  5. 5.20% of 640 =
  6. 6.10% of 100 =
  7. 7.1325 ÷ 25 =
  8. 8.180 − 28 =
  9. 9.64 + 89 + 82 + 74 =
  10. 10.248 − 88 =
  11. 11.Check with nines: 42 × 79 = 3318. Correct or wrong? (a) wrong (b) correct
  12. 12.67 × 8 =
  13. 13.₹26.80 + ₹33.10 =
  14. 14.5 + 5 + 5 + 5 =
  15. 15.13 × 18 =
  16. 16.880 ÷ 5 =
  17. 17.27 + 69 + 87 + 86 =
  18. 18.25% of 810 =
  19. 19.544 − 89 =
  20. 20.Best estimate of 398 × 4? (a) 160 (b) 1600 (c) 16000 (d) 3200
  21. 21.67 × 50 =
  22. 22.10% of 210 =
  23. 23.Check with nines: 467 + 167 = 634. Correct or wrong? (a) wrong (b) correct
  24. 24.275 ÷ 25 =
  25. 25.675 ÷ 25 =
  26. 26.3 + 2 + 8 + 4 + 8 =
  27. 27.165 − 96 =
  28. 28.₹75.25 + ₹30.90 =
  29. 29.5% of 310 =
  30. 30.47 × 15 =
  31. 31.69² =
  32. 32.15 × 15 =
  33. 33.69² =
  34. 34.88 + 68 =
  35. 35.₹26.85 − ₹19.25 =
  36. 36.59² =
  37. 37.Check with nines: 123 + 224 = 346. Correct or wrong? (a) correct (b) wrong
  38. 38.₹14.25 + ₹36.15 =
  39. 39.41² =
  40. 40.89² =

Answer key

  1. 2601
  2. 364
  3. 233
  4. 19
  5. 128
  6. 10
  7. 53
  8. 152
  9. 309
  10. 160
  11. correct
  12. 536
  13. 59.9
  14. 20
  15. 234
  16. 176
  17. 269
  18. 202.5
  19. 455
  20. 1600
  21. 3350
  22. 21
  23. correct
  24. 11
  25. 27
  26. 25
  27. 69
  28. 106.15
  29. 15.5
  30. 705
  31. 4761
  32. 225
  33. 4761
  34. 156
  35. 7.6
  36. 3481
  37. wrong
  38. 50.4
  39. 1681
  40. 7921

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